Ethylene Thiourea (2-Imidazolidinethione) from Mexico
Ethylene thiourea, chemically 2-imidazolidinethione, is a heterocyclic imidazole ring compound specifically named in HTS 2933.29.0500. Used as a chemical intermediate and accelerator in rubber vulcanization processes.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Submit TSCA certification as it's listed on EPA Toxic Substances Control Act inventory
• Include detailed purity analysis; industrial grades typically >98% purity
• Verify not classified as rubber chemical mixture which would go to Chapter 38